2145219192 has 48 divisors (see below), whose sum is σ = 5830699680. Its totient is φ = 712521600.

The previous prime is 2145219169. The next prime is 2145219229. The reversal of 2145219192 is 2919125412.

2145219192 is a `hidden beast` number, since 2 + 1 + 452 + 19 + 192 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32784 + ... + 73247.

It is an arithmetic number, because the mean of its divisors is an integer number (121472910).

Almost surely, 2^2145219192 is an apocalyptic number.

It is an amenable number.

2145219192 is an abundant number, since it is smaller than the sum of its proper divisors (3685480488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145219192 is a wasteful number, since it uses less digits than its factorization.

2145219192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106324 (or 106317 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 2145219192 is about 46316.5110084946. The cubic root of 2145219192 is about 1289.7055177814.

The spelling of 2145219192 in words is "two billion, one hundred forty-five million, two hundred nineteen thousand, one hundred ninety-two".